San Diego State University
Baylor Brooks Institute for Isotope Geology
 

Geological Sciences

The 1700 is a unique High Resolution Multi Collector ICP-MS providing the ultimate in high resolution isotope ratio measurements. SDSU is only the second institution in the world, and the first in North America, to acquire a Nu 1700. The addition of this instrument to the Baylor Brooks Institue is already a powerful force, attracting prominent scientists and promising students to SDSU.
The Nu Plasma 1700 is a unique High Resolution Multi Collector ICP-MS from Nu Instruments providing the ultimate in high resolution isotope ratio measurements. The instrument has been designed with a high dispersion and large geometry to provide a no compromise high resolution capability whilst still maintaining flat top peaks for high precision measurements with minimal loss in sensitivity.

Nu Plasma 1700
Nu Plasma 1700

Nu Plasma HR
Nu Plasma HR

The Nu Plasma HR mass spectrometer was designed in collaboration with users to provide the best in performance and reliability. Every aspect of the instrument has been considered in a totally new design. The result has been the production of a double focusing instrument that provides high precision and accurate isotope ratio determination, coupled with flexibility and ease of use.

The VG Sector 54, seven-collector thermal ionization mass spectrometer has been in operation since August 1991. It is fully automated with a 20-position sample turret, and 6 movable Faraday collectors, and a Daly ion counting system. It is used for high precision isotope ratio analysis of radiogenic isotopes and their parent daughter abundance ratios by isotope dilution. Most of the work is with Sr (Rb/Sr), Nd (Sm/Nd), and Pb (U/Th/Pb) systems and U-Pb geochronology. These isotopic systems provide natural radiogenic tracers of geological processes as well as clocks for determining the age of geologic events.
In thermal ionization mass spectrometry the element of interest is deposited as a salt on a filament. The element is ionized by heating the filament.
The ions are separated according to mass-to-charge ratio as they pass through an electromagnetic field. Precision on isotope ratios < 10 ppm are possible with this instrument.

VG Sector 54
VG Sector 54

Class 100 Clean Rooms
Class 100 Clean Rooms

A cleanroom is a controlled environment where products are manufactured. It is a room in which the concentration of airborne particles is controlled to specified limits. Eliminating sub-micron airborne contamination is really a process of control.

The DX 500 IC system offers a fast and versatile method of chromatographic analysis that offers superior sensitivity, accuracy, and dynamic range. Ion chromatography can be used to determine an ever-expanding range of inorganic and organic ions in a variety of samples.

Dionex Ion Chromatograph
Dionex Ion Chromatograph